28455660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1399}}^1$

素因数の和:1527

約数の個数: 72

約数和(自身を含む): 87141600

約数和(自身を除く): 58685940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 113, 180, 226, 339, 452, 565, 678, 1017, 1130, 1356, 1399, 1695, 2034, 2260, 2798, 3390, 4068, 4197, 5085, 5596, 6780, 6995, 8394, 10170, 12591, 13990, 16788, 20340, 20985, 25182, 27980, 41970, 50364, 62955, 83940, 125910, 158087, 251820, 316174, 474261, 632348, 790435, 948522, 1422783, 1580870, 1897044, 2371305, 2845566, 3161740, 4742610, 5691132, 7113915, 9485220, 14227830, 28455660]

約数ペア:

[(1, 28455660), (2, 14227830), (3, 9485220), (4, 7113915), (5, 5691132), (6, 4742610), (9, 3161740), (10, 2845566), (12, 2371305), (15, 1897044), (18, 1580870), (20, 1422783), (30, 948522), (36, 790435), (45, 632348), (60, 474261), (90, 316174), (113, 251820), (180, 158087), (226, 125910), (339, 83940), (452, 62955), (565, 50364), (678, 41970), (1017, 27980), (1130, 25182), (1356, 20985), (1399, 20340), (1695, 16788), (2034, 13990), (2260, 12591), (2798, 10170), (3390, 8394), (4068, 6995), (4197, 6780), (5085, 5596)]